Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 9 of 9 for “"metal phosphides"”.
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The Preparation of Transition-Metal Phosphides by Fused Salt Electrodes
Made available in DSpace on 2014-12-05T19:36:52Z (GMT). No. of bitstreams: 1 5801751.pdf: 3393351 bytes, checksum: d600edd9e93767a8689b31c93868cf38 (MD5) Previous issue date: 1958
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Catalytic Hydrodeoxygenation of Bio-Oil Model Compounds (Ethanol, 2-Methyltetrahydrofuran) over Supported Transition Metal Phosphides
… step in the treatment of bio-oil, on transition metal phosphide catalysts. The study focuses on reactions of simple oxygenated compounds present in bio-oil -- ethanol and 2-methyltetrahydrofuran (2-MTHF). The findings from this project provide fundamental knowledge towards the hydrodeoxygenation …
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Mechanistic and spectroscopic methods for identifying reactive intermediate structures and active site properties over metals, metal oxides, and metal phosphides
… during reactions of oxygenates over supported metal, metal oxide, and metal phosphide materials. We also detail a combination of analytical techniques and mathematical methods to deconvolute complex spectroscopic data sets in order to identify individual reactive intermediate structures over …
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New Catalysts for Hydroprocessing: Molybdenum and Tungsten Phosphide
… class of hydroprocessing catalysts, transition metal phosphides. Concentration was placed on molybdenum and tungsten monophosphides because of the importance of these elements in standard sulfidic hydrotreating catalysts. Transition metal phosphides exist over a wide range of stoichiometry, and …
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Synthesis And Characterization Of Size Controlled Transitionmetal Phosphide Nanoparticles And Their Hydrodesulfurization Catalytic Activity
<p>Transition metal phosphides are promising catalysts for hydrodesulfurization (HDS). The size-dependent catalytic activity of these metal phosphides for hydrodesulfurization (HDS) remains unstudied because the traditional temperature programmed reduction (TPR) method used in catalyst preparation …
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Novel Carbon-supported Transition Metal Phosphide Catalysts for Hydrodeoxygenation of Fast Pyrolysis Oil
… research was to explore inexpensive supported metal oxides/metal phosphide catalysts for the upgrading of pyrolysis oil into advanced drop-in hydrocarbon liquid fuels by HDO. The first stage of this thesis project investigates a series of molybdenum oxides/phosphide catalysts on different …
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Catalytic Hydrogenation and Hydrodesulfurization of Model Compounds
… types of catalysts including supported noble metals, bimetallic noble metals, transition metal phosphides and transition metal sulfides have been investigated for 2-methylthiophene (2MT) hydrogenation and ring opening. The major products were tetrahydro-2-methylthiophene (TH2MT), pentenes and …
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Novel, High Activity Hydroprocessing Catalysts: Iron Group Phosphides
A series of iron, cobalt and nickel transition metal phosphides was synthesized by means of temperature-programmed reduction (TPR) of the corresponding phosphates. The same materials, Fe₂P, CoP and Ni₂P, were also prepared on a silica (SiO₂) support. The phase purity of these catalysts was …
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Ab Initio Prediction of Metal Phosphide Anode Materials for Lithium and Beyond Lithium Batteries
… To mitigate this destructive effect, transition metals act as stabilising agents, limiting volume change and retaining high capacities. In this dissertation, I investigate two classes of transition metal phosphides (TMPs) as candidates for high capacity Li and Na-ion battery anodes. Herein, I …